The Pselaphid^ of North America. 275 



B. LUNiGER, Lcc. Umber brown, punctulate, pubescence 

 long, recumbent, elytra red, antennas dark red, last four joints 

 fuscous, legs uniform red-brown. Length, 2.0 mm. Plate 

 VIII., Fig. 50. 



Head hexagonal, frontal margin concave, foveas large, eyes 

 prominent. Antcnnce longer than the head and prothorax, 

 joints first to seventh cylindrical, gradually decreasing in 

 length, less, so in thickness, the fifth a little longer than its 

 neighbors, eighth transverse. Club regularly thickened in the 

 ?; in the 5 the eighth joint is wedge-shaped, transverse, the 

 ninth bowl-shaped, tenth resembling a screw, eleventh oval, 

 concavo-convex. Last joint of palpi rather long. Prothorax 

 as long as wide, convex, punctulate, the rather small pubes- 

 cent fovese equal in size, the lateral ones impressed on the 

 sides, therefore not full}- visible from above. Elytra punctu- 

 late, shoulders high, discal lines straight, convergent, sutural 

 interval elevated, highest in the middle. Abdomen punctulate, 

 first segment as long as one-third its width, no carinje, but 

 with a transverse ciliated pad, one-third as wide as the seg- 

 ment. 5 with the metasternum concave, anterior and inter- 

 mediate trochanters with a short, strong spine. 



Habitat. Low, swampy ground in Maryland and Virginia. 



B. CAvicoRMs, Brend. Length, 2.2 mm. Plate VilL, 

 Fig. 49. 



Differs from B. hiniger in the wider, less convex and punc- 

 tulate prothorax, with the fove^e all in full view from above; 

 the abdominal carinas are visible, and include one-fifth of the 

 segmental width. The 3 antennas have the last three joints 

 different in form, the seventh, eighth and ninth transverse, the 

 ninth wedge-shaped, the tenth screw -shaped, the eleventh 

 triangular, resembling the last palpal joint of Tmesiphorus; 

 5 anterior and posterior trochanters spinous. 



Habitat. Maryland and Virginia. 



B. PERPUNCTATA, Brcudcl. Brown, polished, punctate, 

 thinly pubescent. Length, i.S mm. Only the ? known. 



